Arvinas (NASDAQ:ARVN) Q2 2026 Earnings Call

0:00 Hello, and welcome to Arvinas Second Quarter twenty twenty six Earnings Conference Call. At this time, all participants are in a listen only mode. After the speakers' presentation, there will be a question and answer session. To ask a question during the session, you would need to press 11 on your telephone. You would then hear an automated message advising your hand is raised. To withdraw your question, please press 11 again. I would now like to hand the conference over to Jeff Boyle. Sir, you may begin. Good morning, everyone, and thank you for joining us. Earlier today, we issued a press release with our second quarter twenty twenty six financial results, which is available in the Investor and Media section of our website at arvinas.com. Joining us on the call today, we have Randy Thiel, our President and Chief Executive Officer Angela Cacasse, our Chief Scientific Officer and Andrew Saik, our Chief Financial Officer.

0:54 Before we begin, I'll remind you that today's discussions contain forward looking statements that involve risks, uncertainties and assumptions. These risks and uncertainties are outlined in today's press release and in the company's recent filings with the Securities and Exchange Commission, which I urge you to read. Our actual results may differ materially from what is discussed on today's call. A replay of this call as well as today's press release and an updated corporate deck will be available on the Investor and Media section of our website. Now I'll turn the call over to Randy Thiel. Randy? Thanks, Jeff, and good morning, everyone. As a company, we've made significant progress over the past several months. Our focus has been on positioning Arvinas for our next phase of growth, guided by a clear strategic vision.

1:37 Central to that vision is a relentless focus on advancing transformational improvements for patients. Through continued innovation and disciplined execution, we are focused on unlocking the full potential of our pipeline for patients and shareholders. We've reached three significant strategic milestones since the start of the year, beginning with the first ever FDA approval of a pro tax degrader, Vepinu. Second, we completed an out licensing of Vepinu to Rigel Pharmaceuticals, who anticipate making Vepinu available to patients in the very near future. And third, we made the strategic decision that our KRAS G12B program, ARV eight zero six, will only move forward in the hands of a partner. While we believe eight zero six has the potential to become a meaningful treatment option for patients, it will require investment that is inconsistent with our current capital allocation strategy.

2:32 Taken together, our progress and decisions in the first half of twenty twenty six have positioned Arvinas to fully capitalize on the promise of our platform in oncology and neurology. We've fully shifted our focus to our Phase I clinical programs, and we are confident about the opportunity ahead to create important therapies for patients. With that, I'll spend a few moments diving into our three assets with significant clinical data catalysts in the next twelve months. I'll review their differentiated profiles and compelling value propositions. I'll start with ARV393, our BCL6 degrader. I'll explain why BCL6 is an attractive target, share where we are in the progress of the trial, and let you know what to expect in our data release later in 2026.

3:21 Bcl-six is an exciting therapeutic target with initial clinical validation. Bcl-six is a previously undrugged transcription factor and a master regulator of multiple cellular processes during B cell development, including proliferation, survival, and apoptosis. Altered Bcl-six activity has been implicated as an oncogenic driver in several subtypes of non Hodgkin lymphoma. We believe that ARV393 has the potential to become a foundational treatment option and pave the way as the first all oral chemotherapy free approach for patients with B or T cell lymphomas. When we initiated our BCL6 program, no company had successfully demonstrated BCL6 degradation, or advanced a degrader to the clinic.

4:08 Based on feedback from the FDA, our trial began with doses well below our predicted efficacious exposure levels, leading to challenges with enrollment and extended enrollment timelines. However, we've seen a clear acceleration in the enrollment of the trial as we've dosed closer to the expected efficacious range. At the same time, enrollment in the Glofi combo portion of the trial has been strong since it began in the past few months. And as we reported late last year, even at the doses we would not have expected to be efficacious, we've seen early responses in difficult to treat T cell lymphomas like AITL, as well as in patients with B cell lymphomas. When it comes to upcoming data for ARV393, we are on track to share initial Phase one data by the end of the year.

4:55 Our safety profile has supported continued dose escalation, though the majority of the data in 2026 will be from the early cohorts dosed below the expected efficacious range. These early cohorts, when compared with the overall lymphoma population, include a higher than predicted proportion of patients with T cell lymphomas, likely reflecting the limited treatment options for these patients. But as I mentioned, as we've approached the predicted efficacious range, enrollment of patients, including those with B cell lymphomas, has increased. In 2027, we will plan a subsequent disclosure that will include more mature monotherapy data, including patients with DLBCL treated with ARV393, both as monotherapy and in combination with Glofi.

5:43 We are optimistic about the potential of this program to benefit patients who have historically experienced poor clinical outcomes, especially given the positive feedback we've received from investigators over the past few months. I'll turn now to ARV027, our degrader targeting polyglutamine repeat androgen receptor, or PolyQ AR. What's immediately interesting about this program is that the PolyQ AR protein is well understood to be the driver of pathology for patients with spinal and bulbar muscular atrophy, or SBMA, also known as Kennedy's disease. SBMA is a rare neuromuscular disorder with between ten thousand and thirteen thousand diagnosed patients in major markets. Genomic studies suggest that SBMA remains substantially underdiagnosed, and ARV027 has the potential to become the first therapy to target the primary driver of disease.

6:40 SBMA is an X linked disease caused by the toxic buildup of the polyQ AR protein in skeletal muscle. This accumulation disrupts normal muscle function, drives muscular atrophy, and over time, leaves patients with long term physical disabilities, and often unable to accomplish daily activities. As an oral therapy, ARV027 could be uniquely suited as a convenient treatment option to degrade the protein known to cause the disease. In February, we presented preclinical data supporting the potential of ARV027 in SBMA. Guided by published preclinical evidence, we had established a target of achieving greater than 50% PolyQ AR degradation in skeletal muscle, a level we believed would provide functional benefit.

7:30 In an aggressive mouse model of SPMA, 27 showed meaningful improvements in grip strength, endurance, and survival. Importantly, while we don't believe complete elimination of PolyQ is required to achieve therapeutic benefit, our preclinical studies did demonstrate that 27 could achieve AR degradation far exceeding the levels required for functional improvement. Today, I'm pleased to announce that in our ongoing phase one trial in healthy volunteers, we completed the single ascending dose cohorts and have now initiated the multiple dose portion of the trial. Twenty seven is our first degrader aimed at a target in muscle. With that in mind, our Phase I trial must demonstrate two measures that we've never demonstrated before in human muscle tissue.

8:17 The first step is achieving adequate exposure, and the second is to demonstrate AR degradation in muscle. Taken together, these healthy volunteer data would provide proof of mechanism for ARV027 and meaningfully derisk the program. In the first half of next year, we intend to show data for both of these measures, as well as initial safety data from the trial. Following the dosing in healthy volunteers, our plan is next to dose patients with SBMA. The phase one trial design already includes a multiple dose cohort in patients with SBMA. We believe this design will accelerate our development plan with the potential to move to a registrational study following the conclusion of the Phase I trial. Finally, I'll move to ARV102, our third program with upcoming clinical data, and discuss plans for upcoming disclosures and provide a brief update on our regulatory interactions as we plan the next trials for our LRRK2 to greater.

9:14 As a reminder, there are no approved disease modifying treatment options available for patients with either PSP or PD, and we believe 102 has the potential to become a paradigm shift in treatment for these patients. This is supported by biomarker data that we presented in March at ADPD. These data were the first to show modulation of key biomarkers implicated in both PSP and PD, an outcome that has not been demonstrated by LRRK2 inhibitors. This reinforces the potential for one hundred two to provide a unique approach in neurodegenerative diseases. We will share additional biomarker data from the phase one trial, including oculomotor measures and CSF proteomics at the MDS conference in October.

10:00 When it comes to our regulatory interactions for one hundred two, as you'll recall, we are currently working to initiate clinical trials for one hundred two in patients with PSP, both in The US and globally. After successfully completing our phase one trial in The Netherlands earlier this year, we submitted an IND to the FDA to support the initiation of the Phase 1b trial in the first half of the year. As previously communicated, prior to authorizing initiation of the trial, the FDA requested additional information as well as final data from our chronic talk studies, which we've now completed. During the quarter, we've also had productive engagement with both European and Japanese health authorities. Interactions with the agencies are ongoing, and we look forward to updating you on our timing for initiating our next clinical trials, which we now expect to begin in 2027.

10:52 Stepping back, our accomplishments and decisive actions during the first half of twenty twenty six demonstrate our ability to embrace change, capitalize on new opportunities, and execute efficiently. I'm proud of the entire team at Arvinas and how we've assertively concentrated our resources on the most promising opportunities for Arvinas. With disciplined capital allocation, we are prioritizing programs that address high unmet need and have strong commercial potential. Our pipeline is designed to maximize both clinical impact and long term shareholder value.

11:24 With that, I'll turn the call over to Angela. Angela? Thank you, Randy. The Arvinas approach to breakthrough medicines begins with choosing the right biology. The most important decision is selecting targets where targeted protein degradation can fundamentally change the course of disease. We started with two highly validated targets, androgen and estrogen receptor, to establish the clinical power of our DeGraeter platform. Today, we're applying those same principles to build the next generation of differentiated disease modifying medicines across oncology and neurology. Randy highlighted the progress of our clinical portfolio. I'd like to spend a few minutes on two oncology research programs that illustrate where we believe protein degradation can deliver unique advantages.

12:20 I'll begin with ARV6723, our oral HPK1 degrader and our first immuno oncology PROTAC. HpK1 acts as a natural break on the immune system. It limits T cell activation and suppresses anti tumor immunity. What's particularly challenging is that HpK1 biology extends beyond its kinase activity. HbK1 also functions as a signaling scaffold. As a result, inhibitors of the kinase activity leave part of the biology intact. Instead, degradation eliminates both kinase and scaffolding functions. We believe that's why ARV6723 has produced a differentiated preclinical profile compared with inhibitors.

13:12 Across multiple tumor models, including tumors with both high and low immunogenicity, ARV6723 produced robust antitumor activity. In these studies, degradation consistently outperformed both an HPK1 inhibitor and anti PD-one therapy alone. Perhaps most exciting is what we've observed in checkpoint resistant tumors. In seven preclinical models ARV6723 demonstrated meaningful single agent activity where neither an HPK1 inhibitor nor anti PD-one therapy showed benefit. We also demonstrated preclinically that the biology extends well beyond T cell activation.

14:02 HPK1 degradation may remodel the tumor microenvironment through enhanced interferon signaling and activation of the myeloid compartment. We believe this broader immune remodeling may be due to elimination of the scaffolding activity that contributes to the differentiated profile we've observed. And if it translates clinically, could support broader combination opportunities and activity in tumors that have historically responded poorly to immunotherapy. We're excited to begin translating these findings into the clinic. We remain on track to initiate enrollment in our phase one study in the coming weeks.

14:47 We look forward to sharing updates as the program advances. Finally, I'd like to highlight our first in class oral pan KRAS degrader program. We recently presented preclinical data demonstrating the potential to overcome key limitations of current pan RAF inhibitors. Our lead oral degrader showed potent activity across a broad spectrum of KRAS mutations. Importantly, our lead oral pan KRAS degrader targets KRAS mutations found in more than ninety percent of patients with KRAS altered cancers, including difficult to treat mutations such as G12R and Q61. It also demonstrated activity against KRAS amplification, a major mechanism of resistance.

15:39 We also demonstrated superior anti tumor activity in combination with immune checkpoint blockade, highlighting the potential to favorably remodel the tumor microenvironment in a way that inhibitors do not. Together, these findings support the potential for broad activity across KRAS driven cancers, a differentiated therapeutic index, and extensive combination opportunities.

16:06 We will present these exciting combination data at an upcoming scientific conference. The team continues to make outstanding progress, and we look forward to sharing additional updates in the coming months. With that, I'll turn the call over to Andrew to review our quarterly financial results. Andrew? Thanks, Angela, and good morning, everyone. I'm pleased to provide financial highlights for the second quarter twenty twenty six. As a reminder, detailed financial results for the second quarter are included in the press release we issued this morning. Reiterating the team sentiment, we have much to look forward to later this year and are pleased with our strong financial position that will allow us to continue to advance our pipeline into the second half of twenty twenty eight.

16:54 At the end of the second quarter, we had $567,900,000 in cash, cash equivalents and marketable securities on the balance sheet compared with $685,400,000 at the end of twenty twenty five. With our healthy balance sheet and focus on our early pipeline, we are well positioned to continue developing our promising oncology and neurology programs. Q2 was a very busy period for us as during the quarter, we received FDA approval of the first ever Protact degrader, Vepinu, and regulatory approval for the Rigel license agreement. These events had a significant impact to our financial statements, which I will summarize now. First, as a result of the license agreement with Rigel, we recorded license revenue of $62,500,000 of which $35,000,000 was received within the quarter.

17:47 We have also concluded that the method by which we were recognizing revenue under the original Pfizer agreement is no longer applicable under ASC six zero six as a result of the Rigel agreement. We therefore moved all deferred revenue to the P and L, which resulted in a net revenue of $126,400,000 and we recorded a liability of $52,700,000 to cover our remaining obligation to complete ongoing development activities. Additionally, we recorded a $50,000,000 milestone from Pfizer triggered by the bepidu approval. Separately, we recorded $3,500,000 in revenue under a Pfizer research collaboration agreement where the research term has been completed.

18:33 Total revenue for the quarter was $249,700,000 Turning to expenses. During the quarter, we introduced a new cost of license revenue line, which represents royalties and other amounts payable to third parties that are directly attributable to revenue under our licensing agreements. Cost of license revenue was $9,000,000 in the second quarter. The $9,000,000 is comprised of payments to Yale under the amended Yale agreement and were triggered by the FDA's approval of Epidue and the entry into the Rigel license agreement. General and administrative expenses were $24,000,000 for the second quarter compared to $25,300,000 for the same period of 2025.

19:19 The decrease of $1,300,000 was primarily due to decreases in personnel infrastructure related costs of $3,900,000 and costs related to developing our commercial operations of $1,400,000 partially offset by an increase in professional fees of $4,200,000 primarily due to the Rigel license agreement.

19:41 Research and development expenses were $52,600,000 in the second quarter compared to $68,600,000 for the same period of 2025. The decrease of $16,000,000 was primarily driven by a decrease in compensation and related personnel expenses of $11,000,000 which are not allocated by program, and a decrease in program specific expenses of $600,000 and non program specific expenses of $2,600,000 Our cost reduction programs initiated last year were completed during the second quarter. Non GAAP R and D was down $8,100,000 compared to the same period last year, representing a reduction of 14%. Non GAAP G and A increased by $300,000 or 2% compared to the prior year.

20:31 During the quarter, we recognized all remaining deferred revenue from the Pfizer collaboration agreement, so going forward, there will be no revenue recognition related to the original Pfizer collaboration.

20:44 Additionally, we booked a liability of $52,700,000 to cover estimated remaining liabilities related to the Bethany run out costs, so our future obligations under the collaboration agreement will be booked against the accrual and will not impact our P and L. We continue to maintain our cash runway guidance into the second half of twenty twenty eight, And in doing so, we will be able to fund operations through key data milestones over the coming months and continue to support our highly differentiated pipeline programs that have the potential to meaningfully improve patients' lives.

21:19 With that, I'll turn the call over to Randy for closing remarks. Randy? Thanks, Andrew. We've entered the second half of twenty twenty six with multiple opportunities to advance our mission of developing pioneering transformational therapies for patients. We have important catalysts in the coming months and a healthy balance sheet to reach critical milestones. I'll simply close by thanking the patients, investigators, and the entire Arvinas team for their continued support and commitment to helping us achieve our mission.

21:49 Thanks, Randy. Operator, can you please open the queue?

21:54 Thank you. Our first question comes from the line of Nick LaRusso with TD Cowen. Your line is open.

22:18 Great. Thanks very much for taking our question. So on 393, can you discuss a little bit more what you're thinking about the development path, especially considering the data coming mid next year with the GloFit combo? Could this catalyze a potentially pivotal trial in an earlier line setting with bispecifics? Any insight there would be great. Thanks. Yeah, thanks for the question, Nick. The short answer is yes. The long answer is the NHL space has a lot of opportunities to pursue, and so as we've talked about over the years we think that while there's a lot of therapies across the lines of therapy across the different diseases now, there's plenty of chemo, there's plenty of CAR T, there's plenty of bispecifics, What there's not a lot of is orally bioavailable tolerable small molecules.

23:05 And so we think that a BCL6 degrader could slot into multiple areas within the disease landscape. So at this point is we're in the Phase one dose escalation, a bit early to talk about exactly where we plan to go, but definitely can talk about the options, right. So I think as early options looking at later line monotherapy makes sense, think about fourth line LBCL, maybe third line LBCL, think about later line AIITL, a T cell disease that we've been enrolling patients with already in our phase one trial. As we move forward with combinations that could

23:38 open up further access to the third line LBCL space, second line LBCL, and perhaps moving ahead in T cell disease as well. So there's a lot of different places that we could go and I think that the common thread is to get to any of them, we've got to get through the monotherapy dose escalation, show some efficacy, show some signals there. We've got to show we're combinable with other therapies, most immediately bispecific like glossy. And once we've done that, I think it becomes a lot easier to talk about where we'll go next, especially as the landscape continues to evolve around us. Great, thanks very much.

24:18 Please stand by for our next question. Our next question comes from the line of Derek Archila with Wells Fargo. Your line is open. Good morning. This is Jacob on for Derek. Thanks for taking our question. I was just wondering if you could comment on the path forward for ARV-one hundred two in PSP. And what does the timeline and registrational path look like for it in light of some of your more recent regulatory interactions? Yeah, thanks for the question, Jake. So just to rehash a little bit where we are, right? So we began the year with a couple of Phase one trials, one in healthy volunteers, one in patients with PD. And what we plan to do over the course of the year was to start two other trials, a Phase 1b in The U. S. And a registrational oriented study globally. So what we announced a couple months ago is that after submitting the IND to the FDA, they asked us to wait before starting that study, so that's technically a clinical hold before starting the studies in The US.

25:15 And then this morning we announced that with a number of ongoing regulatory interactions that we're currently pursuing and going back and forth on, we think it'll take into 2027 to start those studies. So overall the registrational path in PSP, we would think about the two part study there, the phase 1b and a registrational study, that continues to be where we aim. A registrational path for PSP where we haven't even dosed patients yet would more likely be a

25:43 longer period study. The studies we've done so far are only twenty eight days. So dosing more like six months or a year in patients with PSP would be what would be aiming to start with a registrational study. Definitely worth saying though that as we go back and forth with the different regulatory authorities, which actually is quite beneficial to be getting feedback from the three major agencies all right now, we'll be taking that to finalize the path that we've been set out on as we've said in 2027.

26:13 Thank you. Thank you. Our next question comes from the line of with Cantor Fitzgerald. Your line is open. Hi, good morning. Thanks for taking our question. Maybe a follow-up on ARV-three ninety three. What would be a good outcome from the Phase I monotherapy cohorts that you're going to present later this year? It sounds like these are going to be at the subtherapeutic levels.

26:44 And as we think about, you know, combination with Glofi, would you be able to share where you are with the dose levels right now?

26:54 Did you start at the sub therapeutic levels as well and early trends on combine ability? Yeah, thanks Lee. The short answer on that second one is yes. And just as a read, actually we've talked about this in other venues.

27:10 We were the first company to start working on BCL6 at least to bring it into the clinic to our knowledge. And based on that and some other factors, we got some feedback to start with a very low starting dose for BCL6 a monotherapy. And as we talked about you know with some operational questions that enrollment has been certainly slower than we would have liked. On the flip side as we've gotten close now to the predicted efficacious exposures we've seen a clear uptick in enrollment.

27:37 And in the combination study which started a couple of months ago, that enrollment there has been quite strong ever since the start. So when it comes to the data that we will have at the end of the year, you were right to highlight we will be still very much in the below the efficacious range for most of the patients. In the doses where that we're at now, we're starting to get to the exposure that we would expect the efficacious, so we'll start to see some of that. We also mentioned that we have been enrolling a greater proportion of patients with T cell lymphomas than we would have anticipated based on the overall population. So we think it will make sense to focus on that population and the disclosure that's coming up. And then also, as we talked about heading into next year, focusing on LBCL patients as both monotherapy and combo. The data at the end of this year will certainly be focused on mono. We do not anticipate sharing combo data. We didn't start quite as low for the combo as we did for the mono, but it certainly is starting it certainly did start at levels that in monotherapy were not predicted to be efficacious in patients with B cell lymphomas.

28:43 Thank you. Our next question comes from the line of Edward Tenhoff with Piper Sandler. Your line is open. Great, thank you very much. And looking forward to more data this year, congrats on all the progress. So I'll ask about SDMA and two twenty seven. Really interesting mechanism here.

29:05 Just to confirm, the IND cleared there and what are we waiting for to, well, I'm sorry, where

29:17 are you in multiple ascending dosing? And can you kind of characterize, you mentioned exposure and degradation, what are the clinical endpoints that we would ultimately be modeling or expecting in FBMA? Thanks.

29:36 Thanks, Ted. Maybe I'll pass to Angela a moment on some of the path forward questions. So to reiterate where we are on that question, right? So we have been dosing healthy volunteers with 27. We've now completed the single ascending dose portion of the study and have just begun the multiple dose portion of the study. That will continue, we're expecting to share some data at the beginning or in the first half rather of next year. We do anticipate including some patients with SBMA in the latter stages of that phase one study. And just to reiterate for everyone, this program,

30:09 well, SVMA is certainly a rare disease, we're talking ten thousand, thirteen thousand patients in major markets or so. The great thing about this target is that we are hitting the actual driver of disease. So polyglutamine AR is what drives disease, that's what we're degrading. We're not degrading an upstream transcription factor or some other factor, we're degrading the actual cause of disease. When it comes to the next phases, we've talked about being able to move into registrational intended studies even after phase one, but Angela, I'd like to speak a bit more about plans there and endpoints and so on. Sure, as we move forward, the goal is to really demonstrate that we can target 50% reduction of the polyglutamine repeat androgen receptor in our preclinical studies and in other preclinical studies 50% reduction is the target that we aim to achieve in muscle.

31:01 So that's our goal from a biomarker perspective, and we'll also look at some other

31:06 endpoints as well. Those will be the early endpoints. We will not be able to demonstrate functional change until we go into those registrational studies that Randy mentioned, And there we'll be looking at meaningful scales like the SBMA functional rating scale and those endpoints as well. Great. That's helpful, Angela. Thank you. Thank you. Our

31:36 next question comes from the line of Jonathan Miller with Evercore ISI. Your line is open. Thanks for taking the question and congrats on the progress this quarter, guys. I'd like to follow-up first on the PolyQAR.

31:50 There'll be a couple of patients you said next year. Am I right to assume that we shouldn't expect to see good translation of degradation rates from healthy volunteers to patients that have different levels of protein at baseline? And if that's the case,

32:08 are there particular measures from healthy volunteers that you think will translate well to eventual degradation efficiency in patients and thereby efficacy and functional endpoints? And then similarly on the other data sets where we'll get early data from, I'm thinking of HBK1 where you're going to dose in healthy volunteers to start. Are there particular endpoints that we should be paying attention to when we eventually see that data that you think will translate well?

32:38 All right, thanks for the questions, that's good. So on 27, the short answer on translating the degradation of 27 in polyglutamine AR, which the patients with SBA may have versus wild type AR, which healthy volunteers will have is that it's the same. We effectively degrade wild type AR and polyK AR the same. So that will be really helpful to see as I mentioned that as we share the healthy volunteer data in the first half of next year, just to reiterate, there's a couple pieces there that we have not done before and we're looking forward to see if we can do. One is getting an orally available PROTECT into muscle. So that alone we haven't been looking for before and second of all getting degradation there. And we think that if we can see degradation of the wild type AR in healthy volunteers, that will bode very well for our ability to degrade the disease causing polyQ AR in patients.

33:33 So I think the translatability there will be quite good. I can move on to HPK1 question, but Angela, anything to add on the poly two question? Just to add John that

33:43 we did look at iPSC derived skeletal muscle from both healthy volunteers and SDMA patients, and the pharmacology was exactly intact, which is exactly what Randy was saying we would translate. And so that's our goal, and that's our reason to believe.

34:01 And on the HPK1 program 6723, so again, as we said this morning, that's going to start dosing patients here in the quite near future. The thinking there that this is our first IO therapy. So the first couple of trials will look very similar to other oncology trials, right? These will be in patients, not healthy volunteers, just to clarify that. It's an escalation design, we'll be looking at monotherapy. The Phase one also includes combination setting as well. And we think it's really important there to show some initial signs of efficacy and of

34:34 course safety tolerability and combinability as well. The HDK1 program is interesting, right. So the first IO therapy, it's got quite a large opportunity. We've certainly got to show as we're very aware, something that the HBK1 inhibitors have not shown, which is good response rates and so on in patients. But we are really confident that we'll be able to do that based on the preclinical data we have, which really goes a long way to show including some recent preclinical data this year that we can have differential effects and getting responses, get inhibition and affect the tumor microenvironment in ways that HBK1 inhibitors have been unable to do, PD-one therapies have been unable to do. And so for that reason, we have some good confidence moving to phase one, but look forward to sharing those data.

35:25 Great. Thanks so much. Thank you. Our next question comes from the line of Yigal Nochomovitz with Citigroup. Your line is open. Hi, great. Thank you very much for taking the questions. I had two, one on BCL6. I think you mentioned Randy that the enrollment was a bit slow at the sub therapeutic doses, but you also mentioned that you saw some effective responses at the lower doses. So I was just trying to square those two things. I guess I would have thought that if you saw responses below therapeutic doses that

35:56 would catalyze enrollment curve. And then secondly on LLRK, could you just comment on the obviously, since the last earnings, Biogen and Denali had the Phase 2b for their inhibitor, which as you know, didn't work. But I'd just love to get your thoughts on that and you know why did the greater may be a more promising approach? Thank you.

36:21 Thanks for the questions Yigal. Yeah so on BCL6 what you said is correct and you did point out a bit of a contradiction which we're certainly aware of. So yes, we started pretty far below the predict efficacious range. And the other feedback that we got was around the design and the escalation of it. So not only we start low, involve sorry, not only do we start low, we've also escalated pretty slowly. Seeing the responses that we have has certainly helped, but I think especially in where we're doing the trial in The U. S, especially in LBCL patients, there are

36:52 quite a number of other options that patients can take before they get onto a clinical trial. And I think there's quite some natural hesitance by physicians to put patients on a dose that they might not expect to be on the cases when there are other options out there. So do recognize that it has certainly picked up as we've gotten closer, the responses have helped, and it's another reason that we're excited to get some of these data out by the end of the year, and especially with respect to T cell patients where we think we'll be the first to share data for BCL6 to greater looking at that patient population.

37:26 When it comes to the LRRK2 program and LUMA, you know I think that and Angela, I'd like you to chime in here as well as we've gotten asked about that over the past couple of months, the questions have largely followed the same path, which is look, Lumetrile didn't work, we didn't expect it to work, is there anything to learn? And I think that for us, what we've been really focused on since the beginning of this program really was the fact that we don't think that inhibiting the kinase function of LRRK2 is enough. We think there are other aspects of LRRK2, there's GTPase function, there's scaffolding function that we know drive activity information and the lysosomal capabilities by itself, and we think that those are critical.

38:12 So we didn't we weren't terribly surprised to see that a program that by their reporting gets something like 30% kinase inhibition, we weren't surprised to see it fail. It doesn't deter us in what we're doing. A LRRK2 degrader we think can hit all three different factors and features of LRRK2. We think that matters. We think that degrading it will even clearly affect the kinase function even more, and it doesn't deter from where we're going, which as we've talked about is first in PSP, where there's really substantial unmet need and a very rapidly progressing neurodegenerative disorder versus PD anyway, and then ultimately PD as well. Briefly to add, Igal, biologically, we understand why the inhibitors aren't ineffective.

39:04 We saw greater than 50 fold enhanced target engagement and fostering pathway engagement in the brain. And then we'll be talking about some exciting synaptic markers at MDS that'll, you know, in our minds really prove that the degrader is different in Parkinson's disease patients with looking at eye tracking as well as CSF synaptic markers that are unprecedented changes in markers that are prognostic of progression in Parkinson's disease. Got it. Thank you very much. Thank you. Our next question comes from the line of Etzer Droupe with Barclays.

39:51 Your line is open. Great. Thanks for just a couple one on pipeline and maybe one for Andrew. First, on the pipeline, you would expect to enroll tumor types in the HP K1, the greater program similar to what we've seen from in the HP K1 inhibitors like gastric lung, anything there would be helpful. Is PD-one the most likely initial combination partner initially? And then for Andrew, maybe if you could help us out on how we should think about maybe the modeling of the costs of licensing moving forward? And anything there would be helpful as well. Thank you. All right. Thanks, Esther.

40:37 Yes, so on the maybe I'll answer the easiest ones first. PD-one, yes, that is the likely combination partner first. Haven't said specifically which one, but we will certainly get into that as the months go by. Tumor types, not far off either, things like lung is the right place to be thinking about. That trial will enroll patients that have had prior immunotherapy. And think of it as a traditional sort of escalation trial that we'll get into data. Haven't talked about when, but as that gets going, it gets easier to talk about data coming. Andrew, questions on modeling? Yes, sure. So yes, a lot of changes to the accounting At a high level and I'm happy to take a follow-up if this doesn't clear up your question. At a high level, we've been deferring revenue from the original Pfizer collaboration agreement over the life of collaboration.

41:31 Due to the Rizal out license, we deem that our contributions to that collaboration are complete and therefore we took all of the residual collaboration revenue through the P and L. So going forward, you'll see no additional revenue recognition. We do have tail liabilities on the closeout costs of Vepinu development plan. We booked a liability on the balance sheet for that. When the Q comes out, you're going to see a current portion of that of $28,400,000 a long term portion of 24,300,000 for a total of 52,700,000 So additional payments that we make for that collaboration costs will go against that liability.

42:20 So essentially our P and L going forward is somewhat cleansed from the previous Vepinu collaboration agreement. We will be booking milestones and royalties going forward, but those will be sort of traditional and that there'll be real royalties that we'll receive from Rigel on a go forward basis. We then additionally, we added that cost of sales line that was really just to segregate Yale payments from our normal G and A. So you'll see that cost of sales line. For the time being, that's going to be 100% payments to Yale. We have a small royalty that we paid to Yale on any royalties in and they get a small portion also of milestones going forward. So you'll see those picked up on that collaboration cost of revenue line.

43:13 Please let me know if that answered your question. I know that's a lot. Yes. Great. Thank you. Thank you for that color. Sure. Thank you. Our next question comes from the line of Paul Choi with Goldman Sachs. Your line is open. Hi. Thanks. Good morning and thank you for taking the questions. My first question is on LRRK2 and you indicated you'll present additional biomarker data in October. Can you maybe frame for us what the sort of cadence over 2027 will be in terms of additional updates for that program and any additional clinical measures or potential advancements to the next stage? And then my second question on BCL6 is after you present the GOPHE combination data in mid-twenty twenty seven, as you think about clinical development, can you maybe outline for us, you know, how you're thinking about potential comparator arms versus a monotherapy trial and just how you think about that down the road?

44:21 Thank you. All right, thanks Paul. Yes, so on LRRK2, I'll reiterate what I said before on where we are with 102, which is really focused on the regulatory approach, right. So what we're focused on right now is incorporating feedback in developing that plan for how we move forward with the trials that we've talked about before, while incorporating feedback. So when it comes to the cadence of trials, really the cadence will be, we'd like to start, that's the cadence. When it comes to providing a bit more clarity on where we're going, as we begin those trials as they get closer or even before, we'll certainly talk about how those are shaping up. But the cadence following the biomarker data that we plan to show at MDS will really be dictated on those trial starts. When it comes to for VCL6, look as we move as I said, roads lead through the monotherapy and the combination right now with Clopi. And we'll talk a bit more about where we go after that.

45:16 There's a lot of options, right? The bispecifics, there's more than one, those are potential combinations. There's chemo, there's other things as well. I think that we will really have to watch the landscape evolve to see a bit of where the puck is going, to see where it makes more sense for us to combine. I'll reiterate what I said around the opportunity to move earlier and faster with monotherapy approaches, and then the ability to follow-up with combination approaches that have the opportunity to reach bigger patient populations in earlier lines of therapy. So beyond that, a bit hard to specify what the details will be. But as we've started talking about this program, as we've shared the progress that we've made, certainly lots of companies that are interested in the space, including strategic that clearly are following a traditional path in the NHL space, which is to identify ways to build out the treatment combinations that we're able to get to patients to extend responses and get responses to more patients.

46:24 Great, thank you. Thank you. Our next question comes from the line of Jeet Mirkoji with U. S. Bancorp BTIG. Your line is open. Hi, it's Blake on for Jeet. A quick question on ARV-one hundred two. Do you still have an intended PSP population that you're targeting, or is it going be an all comers trial, thinking more on the lines of Richardson syndrome patients or specific ARV2 variants? Thanks for taking our question. Great question, and maybe I'll have Angela give some more color here. The shortest answer is you're not you're thinking about it right, right, which is that we could look at all the PSP Richardson is the largest subtype.

47:09 When it comes to narrowing more than that, I think it's less likely, but maybe Angela a bit more detail on how we think about the population there. Right. I think that we would not restrict further. Richardson syndrome is really a very uniform progressing population, which is why we like it. And we like the focus there, but this does not restrict us from expanding to all of PSP. I hope that helps. Thank you. Ladies and gentlemen, I'm showing no further questions in the queue. I would now like to turn the call back over to Randy for closing remarks.

48:01 Thanks, operator, and thanks, everybody, for joining this morning. Look forward to providing further updates as we move forward, and thanks again. This concludes today's conference call. Thank you for your participation. You may now disconnect.